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Education & science
Glyph
Brain Games
Games, grey, Brain
DarkSlateGray
1042x1042
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Handdrawn
Brainy Icons Free — 36 Science and Education Icons
science, Atom, nuclear
Black
64x64
Files & folders
Smooth
Pry Frente Black Special
Brain
256x256
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Family & home
Pixel
IconBeast Lite
30x30
UI
Fugue Icons
Arrow, Brain
PaleVioletRed
16x16
Brain, exclamation
Brain, pencil
Brain, Empty
DarkRed
Minus, Brain
Brain, plus
Desktop apps
Farm-fresh
Tan
32x32
trainer, Brain
SandyBrown
Stuttgart
brainstorming, Brain
Mixed
PC 100 Icon Pack
Thinking, Brainstorm, think